Clear cache when idle

[tildelowengrimm]

Cache provides performance improvements, but generally doesn't store state that matters to users. However, it's a great side-channel for setting state on a client machine. We could pro-actively purge cache state from tabs which have been idle for a while to reduce the scope of cache-based attacks.

[NumDeP]

+1 This in the popular browsers is usually a separate feature provided by an extension to make the browser state more responsive again. It's brilliant that you're going to implement it as just a random feature as a privacy concern but could potentially have other benefits to a user as well.

Hypothetically, if a user had 80 tabs open which resulted in 2+GBs of physical memory and a bit of swap being used-up, could your implementation of pro-active purging reduce this as though the browser was restarted and the 80 tabs were loaded again from bookmarks?

[onmyouji]

+1
It will be great if you can also add option to clear cache at regular interval (like in uMatrix)

[czhang03]

+1 the only reason I can't leave firefox is that I cannot install cookie auto-delete on my mobile.
please implement this feature so that I can enjoy brave.